Bis(2,3-dimethylanilinium) dihydrogendiphosphate

Abstract

In the title compound, 2C8H12N+·H2P2O7 2−, the complete dihydrogendiphosphate anion is generated by crystallographic twofold symmetry, with the bridging O atom lying on the rotation axis [P—O—P = 135.50 (9)°]. In the crystal, the 2,3-xylidinium cations are anchored between ribbons formed by the H2P2O7 entities. Crystal cohesion and stability are supported by electrostatic inter­actions which, together with N—H⋯O and O—H⋯O hydrogen bonds, build up a three-dimensional network.

Bis(2,3-dimethylanilinium) tetrachloridozincate dihydrate

“…The nearst Zn•••Zn intra-chain separation is 7.135 (1) Å, while the distance between adjacent chains is 11.050 (2) Å. The examination of the organic cations shows that the value distances and angles show no significant difference from those obtained in other crystals involving the same organic groups (Marouani et al, 2010). The phenyl rings of these cations are planar with a maximum atomic deviation of 0.00025 Å and a dihedral angle between them of 21.95°.…”

“…For properties of aniline derivatives, see: Hirao & Fukuhara (1998); Linden et al (1995); MacDiamid et al (1998); Singh et al (1995Singh et al ( , 2002; Wang et al (2002); Fá bry et al (2002). For structural comparison, see: Harrison (2005); Marouani et al (2010).…”